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AM79C940KC/W Datasheet(PDF) 22 Page - Advanced Micro Devices

Part # AM79C940KC/W
Description  Media Access Controller for Ethernet (MACE??
PDF  144 Pages
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Manufacturer  AMD [Advanced Micro Devices]
Direct Link  http://www.amd.com
Logo AMD - Advanced Micro Devices

AM79C940KC/W Datasheet(HTML) 22 Page - Advanced Micro Devices

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Am79C940
DXCVR Configuration—SLEEP Operation
Note:
1. RWAKE and ASEL are located in the PHY Configuration Control register (REG ADDR 15). PORTSEL [1–0] and ENPLSIO
are located in the PLS Configuration Control register (REG ADDR 14). All bits must be programmed prior to the assertion of
the SLEEP pin.
DXCVR Configuration—Normal Operation
Note:
1. RWAKE and ASEL are located in the PHY Configuration Control register (REG ADDR 15). PORTSEL [1–0] and ENPLSIO
are located in the PLS Configuration Control register (REG ADDR 14).
Sleep
Pin
RWAKE
Bit
AWAKE
Bit
ASEL
Bit
LNKST
Pin
PORTSEL
[1–0] Bits
Interface
Description
Pin
Function
00
0
X
High
Impedance
XX
Sleep
Mode
High
Impedance
01
0
0
High
Impedance
00
AUI with EADI port
LOW
01
0
0
High
Impedance
01
10BASE-T with EADI port
HIGH
01
0
0
High
Impedance
10
Invalid
HIGH
01
0
0
High
Impedance
11
Invalid
LOW
01
0
1
High
Impedance
0X
AUI with EADI port
LOW
01
0
1
High
Impedance
0X
10BASE-T with EADI port
HIGH
0
1
1
1
HIGH
0X
AUI with EADI port
LOW
0
1
1
1
LOW
0X
10BASE-T with EADI port
HIGH
0
0
1
X
X
0X
10BASE-T
HIGH
SLEEP
Pin
ASEL
Bit
LNKST
Pin
PORTSEL
[1-0] Bits
ENPLSIO
BIT
Interface
Description
Pin
Function
1
X
X
XX
X
SIA Test Mode
High
Impedance
10
X
00
X
AUI
LOW
1
0
X
01
X
10BASE-T
HIGH
1
0
X
10
X
DAI port
HIGH
1
0
X
11
X
GPSI
LOW
1
1
HIGH
0X
X
AUI
LOW
1
1
LOW
0X
X
10BASE-T
HIGH



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